Fabric, mac move, no ping

[Alexandr_P]

Hello!

Below scheme:

All works fine.

BUT, when access switch (X590 #1) connect to VSP#2 ping between lap-tops is disappear and does not renew.

Interesting that all ports are deleted from VLAN 1, but:

VSP7K#2_LAB:1#sh vlan mac-address-entry mac 64:31:50:0e:7c:a7
************************************************************************************
                Command Execution Time: Mon Aug 10 15:31:52 2020 UTC
************************************************************************************

====================================================================================================
                                    Vlan Fdb
====================================================================================================
VLAN            MAC                                   SMLT
ID   STATUS     ADDRESS            INTERFACE          REMOTE   TUNNEL
----------------------------------------------------------------------------------------------------
1    learned    64:31:50:0e:7c:a7  Port-1/1/4         false    -
10   learned    64:31:50:0e:7c:a7  Port-1/28          false    VSP7K#1_LAB

“64:31:50:0e:7c:a7” - MAC address of lap-top in VLAN 10

port Port-1/1/4- to X590 #1

Port-1/28 - NNI 

Any ideas?

Thank you!

[Alexandr_P]

Hello, Paul!

Moved lap-top to X440 and no pings.

And one more time I see transferred MAC on VLAN 1 (but VLAN 1 didn’t even configured on these ports)

VSP7K#3_LAB:1#sh vlan mac-address-entry 1
************************************************************************************
                Command Execution Time: Tue Aug 11 16:08:02 2020 UTC
************************************************************************************

====================================================================================================
                                    Vlan Fdb
====================================================================================================
VLAN            MAC                                   SMLT
ID   STATUS     ADDRESS            INTERFACE          REMOTE   TUNNEL
----------------------------------------------------------------------------------------------------
1    learned    00:04:96:9d:38:52  MLT-1              false    -
1    learned    00:1e:68:1b:68:20  Port-1/1/4         false    -
1    learned    00:e0:2b:00:00:01  MLT-1              false    -

VSP7K#3_LAB:1#sh vlan mac-address-entry 10
************************************************************************************
                Command Execution Time: Tue Aug 11 16:09:40 2020 UTC
************************************************************************************

====================================================================================================
                                    Vlan Fdb
====================================================================================================
VLAN            MAC                                   SMLT
ID   STATUS     ADDRESS            INTERFACE          REMOTE   TUNNEL
----------------------------------------------------------------------------------------------------
10   learned    00:04:96:d7:f6:ea  Port-1/28          false    VSP7K#1_LAB
10   learned    00:04:96:d7:f7:5c  Port-1/30          false    VSP7K#4_LAB
10   learned    00:e0:2b:00:00:01  Port-1/28          false    VSP7K#1_LAB

VSP7K#3_LAB:1#show vlan members
************************************************************************************
                Command Execution Time: Tue Aug 11 16:07:26 2020 UTC
************************************************************************************

====================================================================================================
                                   Vlan Port
====================================================================================================
VLAN PORT               ACTIVE             STATIC             NOT_ALLOW
ID   MEMBER             MEMBER             MEMBER             MEMBER
----------------------------------------------------------------------------------------------------
1    1/s1-1/s2          1/s1-1/s2

10   1/1/4              1/1/4

20   1/1/1-1/1/3        1/1/1-1/1/3

30   1/1/1-1/1/3        1/1/1-1/1/3

40   1/1/1-1/1/3        1/1/1-1/1/3

4051 1/28-1/30          1/28-1/30

4052 1/28-1/30          1/28-1/30

MAC of lap-tops:

lap-top 1 = 64:31:50:0e:7c:a7
lap-top 2 = 00:1e:68:1b:68:20

May be it could be issue with channelization?

VSP7K#3_LAB:1#sh interfaces gigabitEthernet vlan
************************************************************************************
                Command Execution Time: Tue Aug 11 16:11:42 2020 UTC
************************************************************************************

====================================================================================================
                                   Port Vlans
====================================================================================================
PORT             DISCARD DISCARD   DEFAULT VLAN         PORT     UNTAG    DYNAMIC UNTAG
NUM      TAGGING TAGFRAM UNTAGFRAM VLANID  IDS          TYPE     DEFVLAN  VLANS   VLANS
----------------------------------------------------------------------------------------------------
1/1/1    enable  false   false     20      20,30,40     normal   disable  P
1/1/2    enable  false   false     20      20,30,40     normal   disable  P
1/1/3    enable  false   false     20      20,30,40     normal   disable  P
1/1/4    disable false   false     10      10           normal   disable  P       10
1/2      disable false   false     0       0            normal   disable  P

Thank you!

[EXTR_Paul]

Disconnect the 590_1 and laptop from the network.

Next,  move the laptop to the x440.  Setup some pings between the laptops and switches.

If everything is stable reconnect the 590_01 to the network and watch the logs.   I suspect you have a duplicate IP address or a simple misconfiguration somewhere.